Method for machining large-radius thin-wall semi-annular part

A processing method and semi-circular ring technology, applied in metal processing equipment, manufacturing tools, accessories of toolholders, etc., can solve the problems of easy deformation, scrapping, difficult to ensure geometric accuracy, etc., so as to improve the pass rate and improve the geometric accuracy. Effect

Inactive Publication Date: 2014-03-12
SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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  • Abstract
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  • Application Information

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Problems solved by technology

Large thin-walled semi-circular parts are easily deformed during processing using existing technologies, and it is difficult to

Method used

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  • Method for machining large-radius thin-wall semi-annular part
  • Method for machining large-radius thin-wall semi-annular part
  • Method for machining large-radius thin-wall semi-annular part

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Embodiment Construction

[0031] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0032] Such as Figure 1 to Figure 10 As shown, a method for processing large-radius thin-walled semi-circular parts specifically includes the following steps:

[0033] Step 1: Roughly machine the contour of the entire ring;

[0034] Use forgings to prepare materials according to a full-circle part, leave a margin of 5mm for the maximum outer contour, and rough-machine the inner hole 2, outer circle, and left and right two ends on the full-circle part to form a full-ring part, leaving 3-4mm on each side Allowance; then the whole ring part is subjected to high temperature tempering heat treatment, and the inner hole 2, outer circle and left and right two ends are roughed again, leaving 2 to 2.5mm allowance on each side;

[0035] Preparation material: 4Cr5MoV1Si; lathe model used for lathe processing: PT39; high temperature tempering ...

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Abstract

The invention discloses a method for machining a large-radius thin-wall semi-annular part, belongs to the technical field of aero-engines, and particularly relates to a method for machining the large-radius thin-wall semi-annular part. According to the method for machining the large-radius thin-wall semi-annular part, provided by the invention, the machining deformation of the large-radius thin-wall semi-annular part is effectively controlled, the machining error of the large-radius thin-wall semi-annular part is less than 0.05 millimeter, and the geometric accuracy of the large-radius thin-wall semi-annular part is increased, so that the yield of the part is increased. The method for machining the large-radius thin-wall semi-annular part comprises the following steps: I, roughly machining the profile of an entire ring; II, roughly machining pin holes, screw holes, a left shoulder and a right shoulder; III, cutting an entire ring part into a semi-annular part; IV, machining an integral molded surface in a semi-finishing way; V, finishing the integral profile.

Description

technical field [0001] The invention belongs to the technical field of aero-engines, and in particular relates to a processing method for large-radius thin-walled semi-circular parts. Background technique [0002] In daily mechanical processing, it is often encountered to process thin-walled circular parts. Some of these parts are processed as a whole ring, and some are formed by combining several arcs into a whole ring. Among them, thin-walled semi-circular parts are the most difficult to process. . Large-scale thin-walled semi-circular parts are easily deformed during processing using the existing technology, and it is difficult to ensure geometric accuracy. Especially when high quenching hardness is required, the deformation will be greater or even scrapped. Contents of the invention [0003] Aiming at the problems existing in the prior art, the present invention provides a processing method for large-radius thin-walled semi-circular parts, which effectively controls t...

Claims

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Application Information

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IPC IPC(8): B23P15/00
CPCB23B27/007B23B27/06B23P15/00
Inventor 王培伟赵健苗海
Owner SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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